Imported Upstream version 2.4.5

[debian/amanda] / docs / systemnotes.txt

Chapter 1. AMANDA 2.4.x - System-Specific Installation Notes
Prev  Part I. Installation                              Next

-------------------------------------------------------------------------------

Chapter 1. AMANDA 2.4.x - System-Specific Installation Notes


AMANDA Core Team

Original text
AMANDA Core Team

Stefan G. Weichinger

XML-conversion;Updates
AMANDA Core Team
<sgw@amanda.org>
Table of Contents


  Solaris_2.6

  Trusted_Solaris

  SunOS_4.x

  Ultrix

  HP/UX

  Linux

  Digital_Unix_4

  Sinix_5.43_(Reliant_Unix)

  IRIX_(all)

  IRIX_6

  IRIX_6.5.x

  SCO

  FreeBSD_3.0

  FreeBSD_4.9

  FreeBSD_5.1

  AIX

  Microsoft_Windows

  Mac_OS_X


Note

Refer to http://www.amanda.org/docs/systemnotes.html for the current version of
this document.
Please read the notes that correspond to the architectures you are installing
for. If you find additional gotchas, or anything incorrect in these notes,
please send your updates to mailto://amanda-hackers@amanda.org after checking
that they are not known/fixed problems in the AMANDA patches page: http://
www.amanda.org/patches/.

 Solaris 2.6

You may have compilation errors on statfs.c if you're running, on a Solaris 2.6
host, a gcc that was not build on a Solaris 2.6 host. This happens because gcc
stores fixed copies of some Solaris header files on an internal directory. You
must rebuild gcc if you get this kind of trouble. Note, however, that gcc
2.7.2.3 does not support Solaris 2.6, you should upgrade to 2.8.0 or higher, or
egcs.

 Trusted Solaris

According to Julian Stevens <julian.stevens@baedsl.co.uk>, the format of inetd
on Trusted Solaris 1.2 is a bit different. Just before the user name, you
should insert the word `untrusted':

  amanda dgram udp wait untrusted amuser /usr/local/libexec/amandad amandad
        

The patch-system script is *NOT* aware of this detail; you must fix it
yourself.

 SunOS 4.x

A bug in GNUtar 1.12 causes it to miscalculate (in fact, to misreport) the size
of filesystems. A patch for GNUtar is available in the patches directory.

 Ultrix

The Ultrix dump program contains an explicit check that it is being run by
root. This defeats the usual practice of a non-root "operator" userid for
dumps. For this reason, the rundump program (a setuid-root wrapper for dump) is
enabled by default. If you find rundump is not necessary for you, just run

  configure --without-rundump

The Ultrix restore program will fail if it is not connected to a tty. Since the
restore program is invoked in the clients in order to create index files, and
it the client is not connected to a tty, index creation will fail. Using GNUTAR
instead of DUMP is an option. Thanks to Edwin Wiles
<ewiles@mclean.sterling.com> for the investigation. Another alternative
proposed by Martyn Johnson <Martyn.Johnson@cl.cam.ac.uk> is to use a modified
restore program: use a binary program editor and replace `/dev/tty' with `/dev/
nul', for instance, and link /dev/nul to /dev/null. Note that the chosen file
name must be exactly 8 bytes long, otherwise you'll break the restore program.
A nice one-liner perl script by Martyn Johnson will do the trick (make sure you
preserve a copy of the original restore program, it will be rewritten by
running this script!):

  perl -pi -e 'BEGIN { $/ = "/dev/tty" } s-$/-/dev/nul-' restore
        

The Ultrix C compiler seems to be too broken to compile AMANDA. You are likely
to need gcc or egcs.

 HP/UX

You may run into an internal /bin/sh limit when running the configure script.
The error message is:

  ./configure: sh internal 2K buffer overflow
        

Using /bin/posix/sh usually works around the problem. Another solution is to
install GNU bash and use it instead of /bin/sh.
If `configure' complains about not finding `lex', you'll have to get `flex'
installed. Look for its URL in Amanda_Installation_Notes.
If you use logical volumes, you may refer to mountpoints or full device
pathnames instead of device names in the disk list file.
According to Stan Brown <stanb@awod.com>, amverify won't work with HP/UX's
stock mt. The work-around is to install GNU cpio, that contains an
implementation of mt, and edit amverify so that MT points to GNU mt and MTOPT
is `-f', or reconfigure and rebuild amanda from scratch, making sure it finds
GNU mt before the stock mt in the PATH.
If you have vxfs filesystems to back up, AMANDA will pick vxdump automatically.
GNU tar 1.12 will incorrectly report the size of backups. There's a patch in
the patches directory that fixes this problem.
The use of `amhpfixdevs' is deprecated, since you can list mount-points or full
device names in the disklist. The script may be removed in future releases of
AMANDA.
Sometimes you may get the error message `Link severed' from an HP/UX client.
This is just a cute name the developers of HP/UX found for `Network error'.
Reported by Michael Brehl <mbr@condor.de>

 Linux

Linux hosts intended to back up efs partitions with dump should install the
dump package, as it is not installed by default on most Linux distributions. It
is possible to find compiled versions of dump on most Linux sites and CD-ROMs.
Note, however, that DUMP for Linux has been quite unreliable, sometimes being
unable to perform backups, producing weird error messages such as `master/slave
protocol botched', and sometimes creating unrestorable dump images, especially
of active filesystems. The first problem can sometimes be fixed by cleaning up
outdated entries in /etc/dumpdates, but your best bet is probably GNU tar.
Make sure the user that runs configure has permission to run the dump program,
otherwise configure may misdetect an ability of dump to accept a -E (for
estimates) switch.
GNUtar 1.11.8, distributed with some Linux versions, will cause index failures
(Index returned -1). Upgrading to GNUtar 1.12 fixes this problem. This is not a
Linux-specific problem, but it is quite common in this platform.
AMANDA now supports the ftape driver version 3.04d. It adjusts the blocksize
automatically to 32k and supports QIC volume tables. More details con be found
in the file ZFTAPE in this directory.
Some releases of dump for Linux, such as the one distributed with Debian 2.0,
have modified dump so that it stores dumpdates in /var/lib. If this is your
case, you should create a link to it in /etc. Suggested by David Wolfskill
<dhw@whistle.com>

 Digital Unix 4

According to Michael Galloway <mgx@spruce.lsd.ornl.gov>, the stock DUX4 dump is
broken. There is a patch available at ftp://ftp.service.digital.com/public/
dunix/v4.0b/duv40bas00005-19970926.README
When both dump and vdump are available, AMANDA will use vdump for backing up
advfs filesystems only, and dump will be used for the rest. If you'd rather
back up all filesystems with vdump, #undef DUMP in config/config.h after
running configure.
Unfortunately, the output of `dump -E' incorrectly matches a line of output
from SAMBA, which gets AMANDA's estimate process confused. client-src/
sendsize.c will refuse to compile if both HAVE_DUMP_ESTIMATE and SAMBA_CLIENT
are defined in config/config.h. AMANDA will work correctly if you undefine
HAVE_DUMP_ESTIMATE in config/config.h; if you prefer to have incorrect
estimates for SAMBA backups, follow the instructions in client-src/sendsize.c
on removing the compile-time error.
According to Oren Laadan <orenl@cs.huji.ac.il>, DEC compiler version "DEC C
V5.2-033 on Digital UNIX V4.0 (Rev. 564)" (obtained with "cc -V") does not
build AMANDA properly, in particular, taper.c. Using gcc is OK.

 Sinix 5.43 (Reliant Unix)

The use of `amsinixfixdevs' is deprecated, since you can list mount-points or
full device names in the disklist. The script may be removed in future releases
of AMANDA.
Sinix port originally by Michael Schmitz <mschmitz@iname.com>.

 IRIX (all)

When setting the tape device name in either amanda.conf or one of the changer
configuration files, make sure you specify the "variable" device name, which
has a 'v' on the end. If not, IRIX will write 4KByte blocks instead of the
32KByte blocks AMANDA tells it to. This apparantly works OK unless you take the
tape to a non-IRIX system, where amrestore will complain about a short (4096)
read.
If you do end up in this situation, the dd command to use to pipe into your
system restore program is:

  dd if=/dev/whatever bs=4k skip=8 | ...
        

Jean-Francois Malouin <Jean-Francois.Malouin@bic.mni.mcgill.ca> reports that,
if you are going to use an IRIX host as the tape server, you *must* patch your
system with *all* kernel and scsi rollup patches, otherwise you may end up with
useless tapes, due to tape rewinding after short periods of inactivity. See
http://www-viz.tamu.edu/~sgi-faq/ for more details.
Some unpatched version of xfsdump are reported as not printing estimates. This
causes estimates to take much longer than they had to, because backups are
always performed twice. According to Mike Acar <mike@kentinfoworks.com>, patch
2333 for IRIX 5.3 and 6.1 will fix this problem.

 IRIX 6

Seems like SGI make program is a bit broken, in a way that causes it to rebuild
some files if doesn't have to if you happen to run make again. Using GNU make
fixes this problem.
If you have xfs filesystems to back up, AMANDA will pick xfsdump automatically.

 IRIX 6.5.x

Luc Lalonde <Luc.Lalonde@polymtl.ca> contributed the following notes:
If you use a jukebox, you must set the ownership of the robot-changer device to
the AMANDA operator:group in /etc/ioperms. Here's my configuration:

  /etc/ioperms: /dev/scsi/sc8d6l0 0600 amanda backup

Otherwise the ownership:group is changed to "root:sys" after each reboot. When
you do upgrades, check the file /var/sysgen/master.d/scsi to see if it has
changed. Otherwise your jukebox could be rendered unuseable. In particular,
check if it has been replaced by a new version and renamed to "./scsi.O/.".
If you use the AMANDA package provided by freeware.sgi.com, you are not
affected by the first question since at compile time the AMANDA operator is
"root:sys".

 SCO

Jens Krause <jens@transcom.de> has reported some problems with GNUtar 1.12 on
SCO Release 5. Although the `sparse' files patch was applied, GNU tar would
consistently crash. GNUtar had to be built linked with malloc-libraries, and
the `--sparse' switches had to be removed from client-src/sendbackup-gnutar.c
and client-src/sendsize.c.

 FreeBSD 3.0

chg-scsi was not updated to support the new camlib.h-dependent chio.h, so chg-
scsi will be automatically disabled if camlib.h is found. You may use chg-chio
instead.

 FreeBSD 4.9

Sep. 28th, 2004: Jason Miller <jwm@interlinc.net> reported problems with
setting up the AMANDA-client on FreeBSD 4.9. He wrote:
Due to the need for read permissions for AMANDA-client the default user and
group for this on FreeBSD 4.9 is "operator:operator" which I found a write up
on that as well. Just a note the port wanted to install it with these user
permissions by default and I initially changed them to match my Redhat 9.0
install. So just doing a
make distclean uninstall install AMANDA_SERVER=servername
fixed that for me. Then I just followed the below instructions and everything
was good to go.
Refer to this link for more details: http://www.freebsd.org/cgi/query-
pr.cgi?pr=59302.

 FreeBSD 5.1

Nicolas Ecarnot <nicolas.ecarnot@accim.com> discovered that for FreeBSD 5.1
(maybe earlier, and surely further), you have to set the net.inet.udp.maxdgram
TCP/IP variable to 65535. The default is 9216, and this is a problem when
trying to backup a large number of clients as indicated by errors in during
amcheck or the estimate phase.
You can just run the command:
sysctl net.inet.udp.maxdgram=63535
but this won't last until the next reboot.
To make it permanent, just add this line:

  net.inet.udp.maxdgram=65535
        

in the file /etc/sysctl.conf.

 AIX

sendsize is reported to coredump on AIX 4.3.3, this is a linking problem, try
configuring AMANDA with the option "--disable-shared".

 Microsoft Windows

Although AMANDA won't run standalone on MS-Windows hosts, it is possible to use
it to back up their disks, by using SAMBA. Please read Backup_PC_hosts_using
Samba for more information.
SAMBA may be unable to back up some files due to file locking restrictions.
Particularly, paging and registry files usually present problems. Backing up
page files is pointless, but registry files are quite important to back up. It
is possible to create regular files that contain registry information by using
the Regback utility, from the Windows NT Resource Kit. Unfortunately, it is not
part of the Windows NT standard distribution, you have to purchase it
separately. Thanks to Ernie Oporto <ernie_oporto@mentorg.com> for the tip.

 Mac OS X

For notes on how to setup AMANDA under Apple's OS X, please refer to http://
web.brandeis.edu/pages/view/Bio/AmandaMacOSXCompileNotes, written by Steven
Karel<karel@brandeis.edu>. Thanks to Jose L.Hales-Garcia <jose@stat.ucla.edu>
for the tip.
-------------------------------------------------------------------------------

Prev                   Up                                   Next
Part I. Installation  Home  Chapter 2. AMANDA Installation Notes